Parse integers

Compute the sum of integers read from STDIN as fast as possible.

Input: 50 000 000 lines, each containing one integer in the range [0; 2147483647].

Output: The uint64 sum of all numbers, printed as a decimal string.

Note: Integer overflow is expected – use a 64-bit accumulator.

Restrictions:30s512Mb 1 Score Packages

Feel free to create an issue if you need an extra library from the standard Ubuntu repository.

Name	Version	Description
libc6-dev	2.39-0ubuntu8.7	GNU C Library: Development Libraries and Header Files Contains the symlinks, headers, and object files needed to compile and link programs which use the standard C library.
libclang-common-14-dev	1:14.0.6-19build4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-15-dev	1:15.0.7-14build3	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-16-dev	1:16.0.6-23ubuntu4	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-17-dev	1:17.0.6-9ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-18-dev	1:18.1.3-1ubuntu1	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-19-dev	1:19.1.1-1ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libclang-common-20-dev	1:20.1.2-0ubuntu1~24.04.2	Clang library - Common development package Clang project is a C, C++, Objective C and Objective C++ front-end based on the LLVM compiler. Its goal is to offer a replacement to the GNU Compiler Collection (GCC). . Clang implements all of the ISO C++ 1998, 11, 14 and 17 standards and also provides most of the support of C++20. . This package contains the Clang generic headers.
libcrypt-dev	1:4.4.36-4build1	libcrypt development files This package contains the files needed for developing applications that use libcrypt.
libgcc-10-dev	10.5.0-4ubuntu2.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-11-dev	11.5.0-1ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-12-dev	12.4.0-2ubuntu1~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-13-dev	13.3.0-6ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libgcc-14-dev	14.2.0-4ubuntu2~24.04.1	GCC support library (development files) This package contains the headers and static library files necessary for building C programs which use libgcc, libgomp, libquadmath, libssp or libitm.
libobjc-13-dev	13.3.0-6ubuntu2~24.04.1	Runtime library for GNU Objective-C applications (development files) This package contains the headers and static library files needed to build GNU ObjC applications.
libssl-dev	3.0.13-0ubuntu3.9	Secure Sockets Layer toolkit - development files This package is part of the OpenSSL project's implementation of the SSL and TLS cryptographic protocols for secure communication over the Internet. . It contains development libraries, header files, and manpages for libssl and libcrypto.
libstdc++-10-dev	10.5.0-4ubuntu2.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-11-dev	11.5.0-1ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-12-dev	12.4.0-2ubuntu1~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-13-dev	13.3.0-6ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libstdc++-14-dev	14.2.0-4ubuntu2~24.04.1	GNU Standard C++ Library v3 (development files) This package contains the headers and static library files necessary for building C++ programs which use libstdc++. . libstdc++-v3 is a complete rewrite from the previous libstdc++-v2, which was included up to g++-2.95. The first version of libstdc++-v3 appeared in g++-3.0.
libtbb-dev	2021.11.0-2ubuntu2	parallelism library for C++ - development files TBB is a library that helps you leverage multi-core processor performance without having to be a threading expert. It represents a higher-level, task-based parallelism that abstracts platform details and threading mechanism for performance and scalability. . (Note: if you are a user of the i386 architecture, i.e., 32-bit Intel or compatible hardware, this package only supports Pentium4-compatible and higher processors.) . This package includes the TBB development files.

Back to listMar 20, 2026 14:18

Dominique GarmierScore: 8,578Success

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Run Statistics

#	Date	Score	Wall Time	CPU User	CPU System	Memory
1	Mar 20, 2026 15:04	8,448	92,914,274	68,116,000	2,003,000	2,420,736
2	Mar 20, 2026 14:01	8,459	90,039,335	69,210,000	1,003,000	2,404,352
3	Mar 20, 2026 13:57	8,466	95,557,009	67,254,000	3,011,000	2,437,120
4	Mar 20, 2026 14:23	8,469	95,980,160	68,287,000	2,008,000	2,289,664
5	Mar 20, 2026 14:23	8,475	95,100,141	69,338,000	1,004,000	2,416,640
6	Mar 20, 2026 14:01	8,497	91,809,885	68,507,000	2,014,000	2,289,664
7	Mar 20, 2026 14:06	8,505	99,107,908	69,583,000	1,008,000	2,289,664
8	Mar 20, 2026 15:04	8,506	95,519,875	68,584,000	2,017,000	2,408,448
9	Mar 20, 2026 13:57	8,522	95,724,571	68,715,000	2,021,000	2,412,544
10	Mar 20, 2026 14:01	8,538	99,779,127	68,869,000	1,996,000	2,289,664
11	Mar 20, 2026 13:59	8,539	98,214,756	68,874,000	1,996,000	2,420,736
12	Mar 20, 2026 13:59	8,546	93,122,348	67,937,000	2,997,000	2,428,928
13	Mar 20, 2026 14:23	8,564	96,062,041	69,076,000	2,002,000	2,416,640
14	Mar 20, 2026 14:13	8,574	97,271,913	69,164,000	2,004,000	2,408,448
15	Mar 20, 2026 14:06	8,577	98,313,977	68,180,000	3,007,000	2,498,560
16	Mar 20, 2026 14:13	8,578	91,612,151	70,197,000	1,002,000	2,412,544
17	Mar 20, 2026 14:13	8,599	93,657,549	70,365,000	1,005,000	2,289,664
18	Mar 20, 2026 14:44	8,602	98,461,729	70,388,000	1,005,000	2,289,664
19	Mar 20, 2026 14:38	8,603	99,321,701	69,397,000	2,011,000	2,416,640
20	Mar 20, 2026 14:38	8,614	100,445,522	69,486,000	2,014,000	2,289,664
21	Mar 20, 2026 14:38	8,651	102,195,074	68,809,000	2,991,000	2,404,352
22	Mar 20, 2026 14:06	8,685	103,230,329	70,082,000	2,002,000	2,408,448
23	Mar 20, 2026 14:18	8,708	102,714,213	70,266,000	2,007,000	2,416,640
24	Mar 20, 2026 14:44	8,709	97,709,846	69,274,000	3,011,000	2,289,664
25	Mar 20, 2026 14:44	8,729	104,338,854	69,429,000	3,018,000	2,289,664
26	Mar 20, 2026 15:04	8,737	101,249,348	72,515,000	0	2,289,664
27	Mar 20, 2026 13:57	8,754	97,811,475	70,643,000	2,018,000	2,285,568
28	Mar 20, 2026 14:18	8,770	94,508,083	70,794,000	1,994,000	2,281,472
29	Mar 20, 2026 13:59	8,841	94,292,515	71,369,000	2,010,000	2,412,544
30	Mar 20, 2026 14:18	8,932	94,698,985	72,129,000	2,003,000	2,289,664

Model	Intel(R) Xeon(R) CPU E3-1271 v3 @ 3.60GHz
Cores	1